Gas-furnace.



B. C. BARTLBBAUGH.

GAS PURNAGB.

APPLICATION PYILED MAY 1l, 1914. ML 10,86?, Patented sept. 15, 1914.

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BENJAMIN C. BARTLEBAUGH, 0F WI-IEELING, WEST VIRGINIA.

GAS-FURNACE.

amuser.

To all whom t may concern.'

Be it known that I, BENJAMIN C. BARTLE- BAL'GH, a citizen of the UnitedStates, residing at Wheeling, in the county of Ohio and State of W'estVirginia, have invented new and useful Improvements in Gras-Furnaces, ofwhich the following is a specification.

The present invention relates to gas furnaces, and it proposes, briefly,an article of manufacture of the general class or character specifiedhaving a plurality of improved,.internal channels wherein the gas isburned and through which the superheated air rapidly circulates in acontinuous or closed path. The construction and arrangement 'of thesechannels are such that the ascending column of heated air eXerts asuction action within the channel Vthrough which the flame and productsof combustion travel, and thereby draws any unburned gases with 1t intoa return channel, whence the mixture of an' and gas is driven across-the burner, so that a maximum degree of consumption and heating isinsured.

An embodiment of the invention is illustrated in the accompanyingdrawing, whereof Figure 1 is a perspective view of the improved furnace;Fig. 2 is a horizontal section on line 2 2, Fig. 3; and Fig. 3 is avertical section on line 3-3, Fig. 2.

Referring to said drawing, 5 indicates, generally, the casing of thefurnace, and 6 the burner. The first of these elements may be of anyapproved form, or design. In the embodiment shown, it is of rectangularoutline, and it has the lower portions of its front wall 5 cut away toprovide an opening 7 for the admission of air and for the escape of theproducts of complete -combustion. p

Tithin the casing or furnace, and disposed in spaced, parallel relationto the front wall 5 is a partition wall 58 which terminates short of thetop wall 5^* at its upper end and is provided at such point with arearwardly-projecting horizontal extension or flange 55 that issimilarly arranged with respect to said wall 54 and, in like manner,terminates short of the back wall 52. Finally, there is a secondpartition wall 56 arranged interiorly of the furnace, but this wall,instead of being arranged in a truly vertical plane, has a forward andupward inclination, terminating below and `inspaced relation to that ofthe extension Specification of Letters Patent. Application filed May 11,1914.

Patented Sept.. 15, 1990111. Serial No. 837,916.

l wall or flange 55. The lower end of wall 5 I extends a slight distancebelow thatof wall and is formed with a forwardly-projectmg ofl'sct orshelf 57 which, in turn, is continued forwardly and downwardly at 58 to,I form the front wall of 'a chamber 8 having i a closed bottom 51, thesaid Wall 58 being ,i provided adjacent its upper end, with a horizontalseries of perforations 59. The several internal walls or partitions 53,55, 56, 57, 58 and 510, extend the entire width of the furnace, the wall57 9 of refractory material, over which and upwardly along the frontface of wall 56 for a. suitable distance extends a-layer of mineral wool10. I The burner 6 is located in front of wall 58 and slightly below theperforations 5 therei'n, and it is likewise coextensive with thefurnace. It is here shown as constituted by an elongated,horizontally-arranged cylinder. the upper side of which is provided withsmall, closely-associated outlet perforations for the gas, the latterbeing supplied from a pipe 6 that is connected at its discharge end toalsuitable mixer 62 that, in turn, opens through the central portion ofthe lower side of the burner.

The arrangement of the furnace walls are such that three separatevertical channels 11, 12 and 3 are produced thereby, as will now. be expained. These channels are disposed one in front of another, the first orfront channel being that between the walls riel being the one betweenthe walls 53 and 1x6, and the third or rear channel being the onebetween the walls 56 and 52. The front and intermediate channelscommunicate at their upper ends with the corresponding end of the rearchannel, the former of the two channels just mentioned having itsconnection effected through the agency of the auxiliary channel l1',produced between the walls 54 and 55. The lower end of the channel 13opens into the chamber 8, While the corresponding end ofthe channel 12is situated directlyi above the burner.

As a result of this arrangement, the air entering the furnace throughthe opening 7 crosses the jets or flame at the burner, is heatedthereby, the channel 11, while the products of coinbustion, togetherwith any unburned gases, pass, in like manner, into and through theintermediate channel 12,y the flame likewise and then passes up through`serving to support a block entering the latter channel. On reaching intovand through the branch channel 11,

and then enters the rear channel 13, cross ing the outlet of channel 12at such point, and as it passes said outlet, it becomes mixed with theunburned gases and products of combustion and carries the same with itthrough channel 13, this mixing of the unburned gases and products ofcombustion with the heated vair being due partly to the natural upwardflow of the former and partly to the suction action exerted in thechannel 1Q by the air current as it passes across the mouth of theaforesaid channel. (,)n arriving at the bottom of channel 13, themixture enters the chamber 8, whence it is then forced, jet-like,through the perforations 59 and across the flame, where the combustiblegases and any other unburned combustible substancesy are consumed, theair being re-heated and passing again into the channel 12.- In this way,a continuous circulation andv constant re-heating are provided for, andtotal consumption of gas insured, the products of complete combustionescaping through the opening 7. Also, since the channels arecomparatively large,

the heating will take place rapidly, and a.

maximum quantity of heat will, in consequence, be given olf.

- rectly into the flame.

2. A gas furnace having internal, front, intermediate and rear verticalchannels in communication at their upper ends; and a burner locatedbeneath the lower end of the intermediate channel, the rear channel ex'tending below the intermediate and front channels and communicating withthe burner. space directly '.Opposite the burner apertures. 1,

3. A gas furnacepartitioned internally to produce vertical air, flameand mixing chania nels arranged successively from front to back thereof,the partition between the air and llame channels having a horizontal,rearwardly extending olfset' at its upper end which terminates in spacedrelation to the rear wall of the, furnace and to theA upper end of thepartition between the flame and mixmg channels; and a burner arrangedbeneath the lower end of the flame channel, the ,last-named partitionhaving a depending extension which is arranged behind and projects belowsaid burner and is 'provided with a series of perforations disthe burnerapertures, whereby the gaseous mixture descending through the mixingchamber will be discharged through'said perforations directly into theflame.

posed opposite a. A gas furnace provided with an inlet Y opening at thelower front portion thereof and having open-ended internal, vertical airand flame channels arranged one in front of the other and above saidopening, the 'air channel having its lower end locateddirectlyadjacentsaid opening and having its upper end laterally offsetand communicating with that of the flame channel, and an internal,vertical channel arranged behind the flame channel, with which the upperends of the latter and the air channel communicate; and a -burnerarranged beneath the lower end of said flame channel, the lower end 'ofthe mixing channel communieating with the burner space directly adjacentthe llame, whereby the gaseous mixture will be discharged froln saidmixing channel directly into the flame.

In testimony whereof I have hereunto set my hand inpresence of twosubscribing witnesses.

BENJAMIN o. BARTLEBAUGH.

Witnesses:

HAzEL BAR'rmBAUGH, G. R. Hmsnn.

